Custom Armada Galvatron

I know this custom has been done before an since I have always liked Armada Galvatron I thought I would take a try at fixing his main problem low leg articulation. Please comment opinions good or bad and i'm open to suggestions on how to improve him. http://www.tfw2005.com/boards/attachments/radicons-customs/27342787d1359335388-custom-armada-galvatron-armadagalvatron.png